21046533060 has 48 divisors (see below), whose sum is σ = 67348907136. Its totient is φ = 4810636032.

The previous prime is 21046533059. The next prime is 21046533061. The reversal of 21046533060 is 6033564012.

It is an interprime number because it is at equal distance from previous prime (21046533059) and next prime (21046533061).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (21046533061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25054977 + ... + 25055816.

It is an arithmetic number, because the mean of its divisors is an integer number (1403102232).

Almost surely, 2^21046533060 is an apocalyptic number.

21046533060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21046533060 is an abundant number, since it is smaller than the sum of its proper divisors (46302374076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21046533060 is a wasteful number, since it uses less digits than its factorization.

21046533060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110812 (or 50110810 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 21046533060 in words is "twenty-one billion, forty-six million, five hundred thirty-three thousand, sixty".